خيارات البحث
النتائج 71 - 80 من 280
The impact of constituent ions of acid mist on assimilation and stomatal conductance of Norway spruce prior and post mid-winter freezing
1993
Eamus, D. | Murray, M.B. (Institute of Terrestrial Ecology, Bush Estate, Penicuik, Midlothian, Scotland (United Kingdom))
Walking behaviour and population density of adult linyphiid spiders in relation to minimizing the plot size in short term pesticide studies with pyrethroid insecticides
1993
Jagers op Akkerhuis, G.A.J.M. (Department of Toxicology, Wageningen Agricultural University, PO Box 8129, 6700 EV Wageningen (Netherlands))
Morphological, biochemical, and histopathological indices and contaminant burdens of cotton rats (Sigmodon hispidus) at three hazardous waste sites near Houston, Texas, USA
1993
Rattner, B.A. | Flickinger, E.L. | Hoffman, D.J. (US Fish and Wildlife Service, Patuxent Wildlife Research Center, Laurel, MD 20708 (USA))
Accumulation of organochlorine contaminants in double-crested cormorants
1993
Somers, J.D. | Goski, B.C. | Barbeau, J.M. | Barrett, M.W. (Animal Sciences Division, Alberta Environmental Centre, Postal Bag 4000, Vegreville, Alberta (Canada))
Polychlorinated biphenyl and organochlorine insecticide residues in human adipose tissue in Poland
1993
Tanabe, S. | Falandysz, J. | Higaki, T. | Kannan, K. | Tatsukawa, R. (Department of Environment Conservation, Ehime University, Tarumi 3-5-7, Matsuyama 790 (Japan))
Zooplankton community responses to chemical stressors: A comparison of results from acidification and pesticide contamination research
1993
Havens, K.E. | Hanazato, T. (Department of Biological Sciences and Water Resources Research Institute, Kent State University, Kent, OH 44242 (USA))
No general effect of ozone on foliar nutrient concentrations in mature scions of grafted Picea abies trees
1993
Ogner, G. (The Norwegian Forest Research Institute, Hogskoleveien 12, N-1432, As (Norway))
Conifer aphids in an air-polluted environment. II. Host plant quality
1993
Kainulainen, P. | Satka, H. | Mustaniemi, A. | Holopainen, J.K. | Oksanen, J. (Department of Environmental Sciences, University of Kuopio, PO Box 1627, SF-70211 Kuopio (Finland))
Conifer aphids in an air-polluted environment. I. Aphid density, growth and accumulation of sulphur and nitrogen by Scots pine and Norway spruce seedlings
1993
Holopainen, J.K. | Mustaniemi, A. | Kainulainen, P. | Satka, H. | Oksanen, J. (Department of Environmental Sciences, University of Kuopio, PO Box 1627, SF-70211 Kuopio (Finland))
Concentrations of zinc and chromium in aquatic macrophytes from the Sudbury and Muskoka regions of Ontario, Canada
1993
Reimer, P. | Duthie, H.C. (Department of Biology, University of Waterloo, Waterloo, Ontario (Canada))
